disgusting service highly dissappointed in this service from FNB

the service I've have been getting from FNB has been beyond disgusting, this is the only bank I ever use and this has never happened the last few months of banking with u guys has been nothing but hell it really makes sense why people keep telling me to switch banks... I have called in too the call centre twice for assistance today on the 12th I called the agent assisting me did not understand my query she then asked my to hold and put me on hold for almost 10min and then hung up in my ear is this the customer service that fnb has been taught , two weeks ago as well I called in spoke to an agent who hung up on me when I requested to speak to a manager... are agent not supposed too assisted when one needs to query transactions... I'm sitting with two queries unresolved from fnb, and ive been to my branch twice now I'm now highly annoyed I keep having money out my account with no explanations, is this now what FNB stands for... beyond ****ed off.